The Swedish term "husmor, älskarinna, matmor, lärarinna" matches the English term "mistress"

other swedish words that include "husmor" : english :
husmor house-wife
husmor, husmoder housewife
husmor, fru matron
other swedish words that include "älskarinna" : english :
älskarinna concubine
other swedish words that include "lärarinna" : english :
lärarinna lady teacher
lärare, skolkamrat, lärarinna schoolfellow